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Dunked Napkin

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Propulsion Controlled Aircraft



Grade Levels

Grades K-4


Lesson Plans / Activities

Although air is present in the room with other matter, a visual aid is necessary for an observer to “see” that air occupies a portion of space. In this experiment, a plastic cup containing both air and a crumpled napkin is turned upside down and placed into a container of water. Air and water cannot occupy the same space at the same time; therefore, the napkin remains dry.
Dunked Napkin [144KB PDF file]
This activity is part of the Aeronautics Educator Guide.